A farmer has 140 bushels wheat of to sell at her roadside stand. She sells an average 16 3/5 of each day. Represent the total change in the number of bushels she has for sale after 6 days .

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

-2/